Jobling v Associated Dairies Ltd [1982] AC 794
Basic Facts: X was injured at work due to D's negligence, reducing his earning capacity. Later, X developed an unrelated condition that further reduced his earning capacity.
Issue: Should D be liable for the secondary, unrelated condition?
Held: D was liable only for negligence loss of earnings in the intervening period between the back injury and Cās development myelopathy.
Lord Edmund Davies: The subsequent condition was unrelated to D's negligence, so D is only liable for the initial injury, not the later condition.
Lord Bridge of Harwich: Supported the idea that D should not be liable for subsequent unrelated conditions that exacerbate the injury.